Mechanisms of pH-dependent activity for water oxidation to molecular oxygen by MnO2 electrocatalysts.

@article{Takashima2012MechanismsOP,
  title={Mechanisms of pH-dependent activity for water oxidation to molecular oxygen by MnO2 electrocatalysts.},
  author={Toshihiro Takashima and Kazuhito Hashimoto and Ryuhei Nakamura},
  journal={Journal of the American Chemical Society},
  year={2012},
  volume={134 3},
  pages={
          1519-27
        }
}
Manganese oxides function as efficient electrocatalysts for water oxidation to molecular oxygen in strongly alkaline conditions, but are inefficient at neutral pH. To provide new insight into the mechanism underlying the pH-dependent activity of the electrooxidation reaction, we performed UV-vis spectroelectrochemical detection of the intermediate species for water oxidation by a manganese oxide electrode. Layered manganese oxide nanoparticles, δ-MnO(2) (K(0.17)[Mn(4+)(0.90)Mn(3+)(0.07)□(0.03… CONTINUE READING

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